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CO 2 ‐philic polyether‐ block ‐amide/glycerol triacetate blend membranes: gas‐permeation performance, thermal stability, and storage stability
Author(s) -
Feng Shichao,
Ren Jizhong,
Zhao Dan,
Li Hui,
Hua Kaisheng,
Li Xinxue,
Deng Maicun
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47620
Subject(s) - membrane , permeation , thermal stability , chemical engineering , materials science , polymer chemistry , casting , glycerol , arrhenius equation , chemistry , composite material , organic chemistry , activation energy , biochemistry , engineering
Polyether‐ block ‐amide (Pebax)/glycerol triacetate (GTA) blend membranes with various compositions were prepared with a solution‐casting method. The gas‐separation performance, thermal stability, and storage stability of the prepared membranes were investigated at different pressures and temperatures. The Arrhenius equation was used to describe the gas‐permeation performance of the Pebax1074/GTA membranes with a low GTA concentration (≤40 wt %) rather than those membranes with a high GTA concentration (>40 wt %). A higher GTA content, lower treatment temperature, and storage temperature increased the gas permeability and induced a stronger hydrostatic pressure effect. The low‐storage temperature was beneficial for fixing GTA on the blend membrane. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47620.